Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

100 hosts (first page) · 429 ms

HostCertsFirst seenLast seenDNS
datasite.com 27 2025-11-10 2026-10-04 ok
*.datasite.com 149 2025-11-10 2026-10-06 —
pub-slack-prodb.us2.datasite.com 5 2026-05-15 2026-09-12 nxdomain
pub-slack-devb.us2.datasite.com 4 2026-06-06 2026-10-04 nxdomain
pub-slack-prod.us2.datasite.com 5 2026-05-15 2026-09-12 nxdomain
pub-slack-prodg.us2.datasite.com 5 2026-05-15 2026-09-12 nxdomain
pub-slack-devg.us2.datasite.com 4 2026-06-06 2026-10-04 nxdomain
pub-slack-dev.us2.datasite.com 4 2026-06-06 2026-10-04 nxdomain
irm-dev.us2.datasite.com 5 2026-04-26 2026-08-24 nxdomain
pub-slackb.dev.us2.datasite.com 4 2026-06-06 2026-10-04 nxdomain
pub-slackg.dev.us2.datasite.com 4 2026-06-06 2026-10-04 nxdomain
pub-slack.dev.us2.datasite.com 4 2026-06-06 2026-10-04 nxdomain
pub-slackdev.us2.datasite.com 4 2026-06-06 2026-10-04 nxdomain
pfstgus2.datasite.com 4 2026-06-06 2026-09-30 nxdomain
pfdevus2.datasite.com 5 2026-05-05 2026-09-02 nxdomain
emea.datasite.com 16 2026-05-01 2026-09-26 ok
*.emea.datasite.com 42 2026-04-14 2026-09-26 —
kfk-eu4p-slb-01.emea.datasite.com 5 2026-05-19 2026-09-16 ok
kfk-eu4p-slb-02.emea.datasite.com 5 2026-05-19 2026-09-16 ok
kfk-eu4p-slb-03.emea.datasite.com 5 2026-05-19 2026-09-16 ok
apib.emea.datasite.com 4 2026-06-07 2026-10-05 nxdomain
apig.emea.datasite.com 4 2026-06-07 2026-10-05 nxdomain
api.emea.datasite.com 33 2026-04-12 2026-10-05 ok
lk.analytics.emea.datasite.com 3 2026-04-28 2026-08-28 ok
auth.dev.emea.datasite.com 5 2026-05-05 2026-09-02 nxdomain
media.datasite.com 5 2026-05-07 2026-09-04 ok
sso.prod-web.datasite.com 5 2026-04-29 2026-08-27 nxdomain
*.sso.prod-web.datasite.com 5 2026-04-29 2026-08-27 —
sso.stage-web.datasite.com 5 2026-05-14 2026-09-11 nodata
*.sso.stage-web.datasite.com 5 2026-05-14 2026-09-11 —
*.sso.devops-web.datasite.com 5 2026-05-27 2026-09-24 —
pub-slackb.datasite.com 5 2026-05-15 2026-09-12 nxdomain
pub-slack-devb.datasite.com 4 2026-06-06 2026-10-04 nxdomain
hec.datasite.com 5 2026-05-13 2026-09-10 ok
sso.prod.datasite.com 5 2026-04-29 2026-08-27 nxdomain
*.sso.prod.datasite.com 5 2026-04-29 2026-08-27 —
app.prod.datasite.com 86 2026-04-11 2026-10-06 nxdomain
wildcard.datasite.com 1 2026-02-09 2026-02-09 nxdomain
*.fde.datasite.com 1 2026-08-12 2026-08-12 —
*.cloudbee.datasite.com 10 2026-05-15 2026-09-13 —
stage.datasite.com 48 2026-04-20 2026-10-04 nodata
auth-stage.datasite.com 4 2026-06-06 2026-09-30 nxdomain
irm-stage.datasite.com 5 2026-05-31 2026-09-28 ok
oos-stage.datasite.com 5 2026-05-14 2026-09-11 nxdomain
*.stage.datasite.com 77 2026-04-18 2026-10-04 —
kfk-us7d-slb-01.stage.datasite.com 5 2026-05-31 2026-09-28 nxdomain
kfk-us10s-slb-01.stage.datasite.com 15 2026-04-27 2026-09-16 ok
kfk-us10s-slb-02.stage.datasite.com 15 2026-04-27 2026-09-16 ok
kfk-us10s-slb-03.stage.datasite.com 15 2026-04-27 2026-09-16 ok
apib.stage.datasite.com 4 2026-06-07 2026-10-05 ok
me.stage.datasite.com 5 2026-05-27 2026-09-24 ok
apig.stage.datasite.com 4 2026-06-07 2026-10-05 ok
auth.stage.datasite.com 4 2026-06-06 2026-09-30 ok
api.stage.datasite.com 4 2026-06-07 2026-10-05 ok
irm.stage.datasite.com 5 2026-05-31 2026-09-28 ok
token.stage.datasite.com 11 2026-04-19 2026-08-26 ok
signon.stage.datasite.com 11 2026-04-19 2026-08-26 ok
sso.stage.datasite.com 5 2026-05-14 2026-09-11 nodata
*.sso.stage.datasite.com 37 2026-04-18 2026-10-02 —
idp.stage.datasite.com 4 2026-06-06 2026-09-30 nxdomain
app.stage.datasite.com 86 2026-04-11 2026-10-06 ok
lk.analytics.stage.datasite.com 2 2026-05-26 2026-07-27 ok
oos.stage.datasite.com 5 2026-05-14 2026-09-11 ok
shareknowledge.datasite.com 5 2026-05-04 2026-09-01 nxdomain
sso.stage-web.core.datasite.com 5 2026-05-14 2026-09-11 nxdomain
*.sso.stage-web.core.datasite.com 5 2026-05-14 2026-09-11 —
signature.datasite.com 3 2026-06-08 2026-08-07 ok
pub-slackg.datasite.com 5 2026-05-15 2026-09-12 nxdomain
tokeng.datasite.com 14 2026-04-12 2026-09-20 nxdomain
dev-tokeng.datasite.com 5 2026-05-05 2026-09-02 nxdomain
staging.datasite.com 2 2026-07-02 2026-07-02 ok
cloud.marketing.datasite.com 3 2026-03-16 2026-08-17 ok
image.marketing.datasite.com 11 2026-03-17 2026-09-25 ok
click.marketing.datasite.com 3 2026-03-16 2026-08-17 ok
view.marketing.datasite.com 3 2026-03-16 2026-08-17 ok
signong.datasite.com 14 2026-04-12 2026-09-20 nxdomain
pub-slack-devg.datasite.com 4 2026-06-06 2026-10-04 nxdomain
auth.datasite.com 10 2026-04-10 2026-10-06 ok
stage-auth.datasite.com 4 2026-06-06 2026-09-30 nxdomain
dev-auth.datasite.com 5 2026-05-05 2026-09-02 nxdomain
sauron-api.datasite.com 14 2026-04-16 2026-09-29 nxdomain
pub-slack.datasite.com 5 2026-05-15 2026-09-12 nxdomain
slackbot-destroyer-devops.slack.datasite.com 5 2026-05-19 2026-09-16 nxdomain
slackbot-destroyer-dev.slack.datasite.com 5 2026-05-19 2026-09-16 nxdomain
splunk.datasite.com 5 2026-05-18 2026-09-15 nxdomain
global.datasite.com 43 2026-04-23 2026-10-06 ok
*.global.datasite.com 147 2026-04-14 2026-10-06 —
*.outlook.global.datasite.com 8 2026-04-25 2026-08-21 —
idp.global.datasite.com 5 2026-04-10 2026-10-06 ok
data.useranalytics.global.datasite.com 3 2026-05-07 2026-08-21 ok
content.useranalytics.global.datasite.com 4 2026-06-03 2026-09-20 ok
mail.datasite.com 12 2026-05-10 2026-10-01 nodata
*.mail.datasite.com 12 2026-05-10 2026-10-01 —
url5642.mail.datasite.com 5 2026-04-26 2026-08-24 nxdomain
url1892.mail.datasite.com 5 2026-04-26 2026-08-24 ok
15444969.mail.datasite.com 5 2026-04-26 2026-08-24 ok
email.datasite.com 6 2026-04-28 2026-09-26 nodata
*.email.datasite.com 6 2026-04-28 2026-09-26 —
datasitelearningplatform.datasite.com 9 2026-05-27 2026-09-24 ok
token.datasite.com 14 2026-04-12 2026-09-20 ok

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/datasite.com.

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/datasite.com.